Mud scraper for tractor wheels



April 20, 1937. (5, w E R 2,077,919

MUD SCRAPE R FOR TRACTOR WHEELS Filed June 14, 1935 lzveizfiw Gazsi'af MEWS iT'OI IZ Patented Apr. 20, 1937 I UNlTD STATES ATENT OFFICE MUD SCRAPER FOR TRACTOR WHEELS Gustaf W. Engstrom, Riverside, 111., assignor to International Harvester Company, a corporation of New Jersey Application June 14, 1935, Serial No. 26,656

13 Claims. (01. 280-158) This invention relates to a mud scraper attachan axle joining the lower ends of the outwardly ment for the front wheel of a tractor of a wellbowed arms l9 and 20 of the arched wheel frame known tri-cycle type. i l, as best shown in Figures 1 and 2. The upper The main object of the invention is to provide end of the shaft I5 is suitably connected to a a mud scraper attachment for connection to the steering shaft extending towards the rear of the 5 steering truck of the tri-cycle type of tractor tractor and provided with a steering wheel in and to adapt this mud scraper attachment for convenient position with respect to the operaconnection to the yoke of the steering truck. tors station on the tractor, so that the operator Another object is to provide a mud scraperatmay steer the tractor by means of the steering tachment in which the mud may be scraped from wheel. The tractor power plant comprising the 10 the wheel as the tractor is driven in a forward usual engine, radiator, fuel tank, etc., constitutor reverse direction. ing the forward portion of the tractor, is sup- Another object is to provide the mud scraper ported on and between the side sills H and H, attachment with means for adjusting the scraper and the steering shaft extends above these. Ro-

blades. tation of the steering shaft will transmit steer- 15 Still another object is to include in the attaching motion to the steering truck. ment scraping means for the skid ring of the In order to prevent the mud from balling up on dirigible front wheel. the dirigible steering truck wheel 18 and clog- In accomplishing the foregoing objects and ging between the bowed arms of the steering 20 other minor objects, which will hereinafter be truck frame of bolster fork H, a suitable mud 20 more specifically described and then defined in scraper attachment 2| which is the main object the claims, the preferred forms of the improved of my invention has been attached to the steering details of structure are illustrated in the accomtruck frame ll, as best shown in Figures 1, 2, panying drawing, wherein: and 3. The mud scraper attachment 21 com- Figure 1 is a side elevation of a tractor showing prises suitable bow-shaped right and left hand 5 the front steering truck with the mud scraper at- Supporting members 22 and 23, respectively. tachment attached thereto; These members 22 and 23 respectively are secured Figure 2 is a front elevation of the tractor to the right and left hand bow-shaped arms I!) shown in Figure 1 with the mud scraper attachand 20 and are pivotally mounted thereon about ment in place; a horizontal axis by the bolts and studs 24 and 25 30 Figure 3 is a section along the line 33 of Figrespectively. The front and rear portions of the ure 2 looking in the direction of the arrows, showbow-shaped members 22 and 23 are secured by ing the mud scraper attachment; the outwardly extending flange portions 26 and Figure 4 is an enlarged view along the line 44 21 and 26' and 21' which are removably fastened of Figure 3 looking in the direction of the artogether, as best shown in Figure 3. Attached row; a to the dirigible steering truck wheel I8 is the Figure 5 is an enlarged view showing the adangle shaped skid ring 28. The right hand front justing bracket along the line 55 of Figure 1 and rear mud scraper blades 29 and 30 are selooking in the direction of the arrows. cured to the mud scraper supporting portions 29 4:0 The invention is herein disclosed in combinaand 3il',respectively, of the bow-shaped supporttion with the single front truck wheel and skid ing member 22. The mud scrapers 29 and 30 are ring of a tractor of the well-known tri-cycle type. adjustably mounted to the mud scraper support- In the specific embodiment of the invention ing portions 29 and 30 by the slots 3!, as best herein disclosed, the tractor ID has forwardly exshown in Figure 2. The mud scrapers 29 and tending channel members II and H. The for- 30 are so designed that they may be used either ward ends of the side sills or members H and II as a front or rear scraper respectively. The left are secured to a front bolster I2 formed with a hand front and rear mud scraper blades 32 and central, vertical cylindrical bore I3, and the 33 respectively are secured to the scraper blade bolster has an upward extension formed with an supporting portions 32 and 33' respectively of upright tubular post I l in alignment with the the bow-shaped member 23. The left hand front 50 bore I 3. The bore l3 and the post 14 contain and rear mud scraper blades 32 and 33 respecbearings for the vertical shaft l5 of a dirigible tively are suitably designed so that the scraper truck "5 composed of the arched wheel frame ll blades scrape the skid ring 28 as well as the removably secured to the lower end of the shaft dirigible wheel I8, as best shown by the notched I5 and the steering truck wheel l8 journaled on portion 34 of Figures 1 and 2. The upstanding portion 28' of the skid ring 28 is suitably scraped by the edge portions 29 30 32 and 33 of the scraper blades 29, 3E], 32, and 33 respectively, as

best shown in Figures 1 and 2. The left hand 5 front and rear mud scraper blades 32 and 33 are likewise adjustably mounted on the scraper blade supporting portions 32' and 33 respectively by the adjusting slots 35 of the adjusting blades. The left hand front and rear mud scraping blades 32 and 33 are so designed that they may be used respectively either as the left hand front or rear scraping blades.

A further adjustment is provided for the mud scraping attachment 2|, as best shown in Figures 1, 3, 4, and 5. In Figures 3, 4, and 5, the right and left hand supporting members 22 and 23 respectively are pivotally adjusted about the pivotal supports 24 and 25 respectively by means of the downwardly and inwardly extending brackets 36 and 31 which are secured by welding to the supporting member 22; and by the downwardly and inwardly extending brackets 38 and 33 respectively secured to the supporting member 23, as best shown in Figure 3. Set screws 40 are adjustably mounted on each of the brackets 36, 31, 38, and 39 below the pivotal supports 24 and 25 and the supporting members 22 and 23. The supporting members 22 and 23 may be adjusted upwardly or downwardly in a reciprocatory manner at the front and rear portions of the supporting members by adjustably moving the screws 48 in and out against the front and rear edges of the bow-shaped members l9 and 2|] respectively and thus may be secured rigidly in adjusted position.

It will be evident that there has been provided a mud scraper attachment for the steering truck wheel of a tri-cycle type tractor which may be readily connected to or from the steering truck of the tractor, and that said attachment may be suitably adjusted for scraping the mud from the steering truck wheel or wheels, if two are used, and the skid ring of the steering truck wheel when the truck wheel is so equipped, as the tractor is driven either in a forward or rearward direction.

It is also evident that this type of scraper attachment may be applied to a tri-cycle type of tractor having a single upright bolster placed 50 between and supporting dual steering wheels instead of the bolster fork and the single steering wheel.

It is to be understood that material suitable for the stresses encountered in an attachment of this nature are to be used. The preferred embodiment of the invention herein described is capable of certain modifications without departure from the scope of the invention to be defined in the following claims.

What is claimed is:

1. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame, of a scraper attachment comprising scraping means for scraping the aforesaid steering truck wheel, and

means for supporting the aforesaid scraping means from the arched wheel frame.

2. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame and said wheel having a skid ring mounted thereon, of a scraper attachment comprising scraping means for scraping the steering truck wheel, scraping means for scraping the skid ring, and supporting means for supporting all the aforesaid scraping means from the arched wheel frame.

3. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame, of a scraper attachment comprising scraping means for scraping the aforesaid steering truck wheel, said scraping means comprising scraping blades mounted forwardly and rearwardly of the arched wheel frame whereby the steering truck wheel will be scraped as it moves in either direction, and supporting means for supporting the aforesaid scraping means from the arched wheel frame.

4. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame and said wheel having a skid ring mounted thereon, of a scraper attachment comprising scraping means for scraping the aforesaid steering truck wheel, said scraping means comprising scraping blades forwardly and rearwardly mounted with respect to the arched frame whereby the steering truck wheel will be scraped as it moves in either direction, scraping means for scraping the skid ring whereby the skid ring will be scraped as it moves in either direction, and supporting means for supporting the aforesaid scraping means from the arched wheel frame.

5. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame, of a scraper attachment comprising scraping means for scraping the aforesaid steering truck wheel, means for adjusting the scraping means, and supporting means for supporting the aforesaid scraping means from the arched wheel frame.

6. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame, of a scraper attachment comprising means for scraping the aforesaid steering truck wheel, supporting means for supporting the aforesaid scraping means from the arched wheel frame, and adjusting means for adjusting the aforesaid supporting means.

'7. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame, of a scraper attachment comprising means for scraping the aforesaid steering truck wheel, means for adjusting the scraping means, supporting means pivotally mounted on the arched wheel frame for supporting the aforesaid scraping means, and adjusting means for adjusting the aforesaid supporting means.

8. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame, of a scraper attachment comprising means for scraping the aforesaid steering truck wheel, means for adjusting the scraping means, supporting means pivotally mounted on the arched wheel frame for supporting the aforesaid scraping means, and adjusting means for adjusting the aforesaid supporting means, said adjusting means comprising forwardly and rearwardly mounted adjusting means operatively engaging the arched wheel frame.

9. A scraper attachment, for tractors of the tri-cycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame, comprising scraping means for scraping the aforesaid steering truck wheel, supporting means for supporting the scraping means, and means for securing the supporting means to the arched wheel frame.

10. A scraper attachment, for tractors of the tri-cycle type having a front steering truck, said steering truck having a steering truck wheel supported in an arched wheel frame, comprising a plurality of laterally spaced scraper supporting members, means for pivotally mounting the supporting members on the arched wheel frame, means for detachably securing the supporting members together at their front and rear ends, means for adjusting the supporting members, a plurality of scraper blades positioned on the scraper supporting members, said scraper blades being forwardly and rearwardly mounted on the supporting members whereby the steering truck wheel may be scraped as it travels in either direction, and means for adjusting the scraper blades on the scraper supporting members.

11. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported from a wheel frame, of a scraper attachment comprising scraping means for scraping the aforesaid steering truck wheel, said scraping means comprising forwardly and rearwardly mounted scraping blades whereby the steering truck wheel will be scraped as it moves in either direction, and supporting means for supporting the aforesaid scraping means from the wheel frame.

12. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported from a wheel frame, of a scraper attachment comprising means for scraping the aforesaid steering truck wheel, supporting means pivotally mounted on a horizontal axis on the wheel frame for supporting the aforesaid scraping means, means for adjusting the scraping means on the aforesaid supporting means, and adjusting means for adjusting the aforesaid supporting means.

13. The combination with a tractor of the tricycle type having a front steering truck, said steering truck having a steering truck wheel supported from a wheel frame, of a scraper attachment comprising means for scraping the aforesaid steering truck wheel, supporting means mounted on the wheel frame for supporting the aforesaid scraping means, means for adjusting the scraping means on the aforesaid supporting means, and adjusting means engaging said wheel frame for adjusting the aforesaid supporting means.

GUSTAF W. ENGSTROM. 

